-al -ol a-a a-c aaa aac aaf aal aao aap aas ac- aca acc acf acl aco acp acs af- afa afc aff afl afo afp afs al- ala alc alf all alo alp als aoa aoc aof aol aoo aop aos ap- apa apc apf apl apo app aps as- asa asc asf asl aso asp ass c-- caa cac caf cal cao cap cas cca ccc ccf ccl cco ccp ccs cfa cfc cff cfl cfo cfp cfs cl- cla clc clf cll clo clp cls co- coa coc cof col coo cop cos cpa cpc cpf cpl cpo cpp cps csa csc csf csl cso csp css faa fac faf fal fao fap fas fca fcc fcf fcl fco fcp fcs ffa ffc fff ffl ffo ffp ffs fla flc flf fll flo flp fls foa foc fof fol foo fop fos fpa fpc fpl fpo fpp fps fsa fsc fsf fsl fso fsp fss l-p la- laa lac laf lal lao lap las lca lcc lcf lcl lco lcp lcs lfa lfc lff lfl lfo lfp lfs lla llc llf lll llo llp lls loa loc lof lol loo lop los lpa lpc lpf lpl lpo lpp lps lsa lsc lsf lsl lso lsp lss oaa oac oaf oal oao oap oas oc- oca occ ocf ocl oco ocp ocs of- ofa ofc off ofl ofo ofp ofs ola olc olf oll olo olp ols oo- ooa ooc oof ool ooo oop oos op- opa opc opf opl opo opp ops os- osa osc osf osl oso osp oss p-p paa pac paf pal pao pap pas pca pcc pcf pcl pco pcp pcs pfa pfc pff pfl pfo pfp pfs pla plc plf pll plo plp pls poa poc pof pol poo pop pos ppa ppc ppf ppl ppo ppp pps ps- psa psc psf psl pso psp pss saa sac saf sal sao sap sas sca scc scf scl sco scp scs sfa sfc sff sfl sfo sfp sfs sla slc slf sll slo slp sls soa soc sof sol soo sop sos spa spc spf spl spo spp sps ss- ssa ssc ssf ssl sso ssp sss